Grater.



Patented Sept. 4. |900. E. CRUPE.

No. 65mm.

G R A T E R.

(Application tlled. Dac. 6, 1899.)

2 Sheets-Sheet I.

(No Model.)

/N VEA/rol? Magi Patented Sept. 4, |900. E. CRUPE.

G R A T E R (Application led Dec. 6, 1899.)

2 Sheets-Sheet 2.

lNo Model.)

TN: mams Patins co, Puocmwo.. wAsmNaroN, 1:. c.

UNTTED STATES PATENT OFFICE.

EMMANUEL CRUPE, OF SAN FRANCISCO, CALIFORNIA! GRATER.

SPECIFICATION forming part of Letters Patent No. 657,191, datedSeptember 4, 1900. Application filed December 6, 1899. Serial No.739,455. (No model.)

To all whom it may concern:

De it known that I, EMMANUEL CRUPE, a citlzen of the United States,residing at San Francisco, in the county of San Francisco and State ofCalifornia, have invented certain new and useful Improvements inAutomatic Grat-ers; and I do hereby declare the follow-v ing to be afull; clear, andexact description of the invention, such as will enableothers skilled in the art to which it anpertains to make and use thesame. I

Generally speaking this invention is an improvement in gratersg7 butmore particularlyit is an improvement on the device show 1n myapplication Serial No. 725,922.

In addition to all the objects of the abovedesignated invention I haveafforded means for quickly adjusting the operative area of the feeder,and thereby quickly adapting the device for the grating of variousarticles Whose bulk, compactness, or hardness vary greatly.

I have so constructed the various parts that they can be quickly takenapart for any ob- Jeot or another grating-surface of a coarser or finerquality substituted, while the automatic nature of the feed possible inmy former apphcation is preserved and, in fact, greatly simplified inits general make up.

My invention more particularly resides in the novel combination,construction, and arrangement of parts hereinafter fully described, andset forth in the claims.

I am enabled to accomplish the above results by the means illustrated inthe accom- 35- panying drawings, in Whichi Figure l is a perspectiveview of the device. Fig. 2 is a central vertical section of the same. 3is a section on the line t a; of Fig. 2. Fig. 4: is a perspective viewof the several parts constituting the feeder. Figs. 5 kand 6 representtwo grating-surfaces of different sizes of mesh. Fig. 'is the main shaftthrough which motion is imparted to the grating-surface. Fig. S is aperspective view of the guard which surrounds the rotary grater, andFig. 9 is the rod to which the upper estremi` ties of the elastic baudsare attached.

l will now explain in detail the construction of my invention, referringto the above views by letter. y Y

represents a suitable foundation or base which is adapted to be screwedor otherwise fastened down to a sufficiently-stable table or otherstand. Dovetailed into opposite edges of this base A are the verticalparallel sides B B', which are provided with the vertical guides b h',while the cross-braces a a' extend horizontally from B to B. Adapted toslide vertically in the guides b b is the feeder C7 which is providedwith a hinged top D. Within this feeder C and supported by means of thehorizontal shaft E is the rotary grater F.

It will be readily seen that by means of the device so 'far described ifthe substance to be grated be placed Within the feeder C and the latterforced downward against the 1'0- tary grater F, which is caused torevolve by means of the crank d, the substance will be rapidly reducedto particles of the vdesired dimension and the latter dropped intoasuitable receptacle which is placed on the base A. Now should it befound desirable to reduce the operative area of the feeder in order tocope with a substance of greater or less degree of density I haveprovided the telescoping sections G and H. Further, in order to providea correspondingly-sized follower or feeder I have constructed themembers I and J, which are adapted to telescope in the upper portion Dof the feeder C.

As a means for causing the device to feed automatically I have providedthe rubber bands K, which are attached at their lower ends to suitablehooks on the cross-braces a a', while their opposite extremities passover a horizontal rod L, which penetrates the top D and members I and J.

Having thus described the general outline of my invention, I will nowexplain its operation. Assuming that the sections G and H are removedfrom the feeder and also that the members I and J are held rigidly tothe top D by means of the pins e and j' and that the article to begrated is placed within the feeder above the rotary grater, it will beseen that as the crank d is turned and the article ground down and thegratings deposited in the manner above set forth the rubber bands K willcause the feeder to slide downward in the guides b b until thelwhole ofthe substance is grated away. N 0W in order to prevent the substancefrom following the rotary grater in larger particles than those desiredIdo will remain stationaryfand the members I'- and J will travel towardthe grater 'and automatically feed the substance in the manner abovedescribed. Now should it be desired to further reduce the operative areaof the feeder the interior section H is set in place, as shown in Fig.2, and the pin f removed. In this case the interior member J will alonetravel toward the grating-surface, and thereby automatically feed thesubstance. Should it be desired to disassemble the parts, all that isnecessary to do is to loosen the thumbscrew fn and swing the plate pupward, when lthe horizontal shaft E can be readily removed, therebypermitting the feeder C to be drawn upward out of the vertical guides bb and the remaining portions readily removed from the feeder. In orderto allow the grated substance to escape from the interior of the rotarygrater, I have provided the horizontal opening q.

It will be readily seen from the foregoing description that I haveprovided a very simple, durable, and most effective grater in which theconditions can be readily changedy to accommodate various substances,while the grating-surface, aside from being adjustable in its area, canbe quickly and readily removed and a grating-surface with a differentmesh substituted in its stead.

Having thus fully described my invention,

`what I claim, and desire to secure by Letters 1. In a device of theclass described the combination With a rotary grater provided with ashaft having fixed bearings, a feeder rabout said grater and means forforcing said feeder against said grater, and a series ofl telescopingsections Within said feeder and adapted to be separately fastenedtogether to adjust the operative area of said feeder, substantially asland for the purpose set forth.

2. In a device of the class described the combination with a slidingfeeder, a rotaryk removable gra-ter within said feeder, a shaftremovably attached to said grater, slots in said feeder and throughwhich said shaft protrudes, a stationary guide for said feeder, saidshaft having fixed bearings in said guide, and a series of telescopingsections within said feeder, said sections being adapted to beseparately fastened together for the purpose set forth.l l

In testimony whereof I affix my signature in presence of two witnesses.

EMMANUEL CRUPE. Witnesses:

GEORGE PATTIsoN, L. A. GoLDBEcK.

